Used the flash cooking system on a climb of Mount Baker for melting and boiling snow for water supply. Camped at the edge of the glacier, about 5000 feet. Moderate winds did not negatively affect it. Stove is compact and easy to pack, intuitive to operate and efficient. Under these conditions the stove worked flawlessly. The heat indicator was also kind of fun. Minor negatives are: the volume of water with each boil is a little small, attachment for the wire handle for controlling the flame could be better & the cup is sometimes hard to remove when the burner is hot. However, the simplicity and relative ease of use tops any other stove I have used.